148 / 1840
1,0
Accumulated Dose as fraction of Total
Seeds with
131
Cs Radioactive Isotope
•
Biological Effectiveness
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,9
125
I
103
Pd
131
Cs
Total Dose (100%)
•
145 Gy
•
125 Gy
0 20 40 60 80 100 120 140 160 180 200 220
0,0
0,1
Days after Implantation
•
115 Gy
•
Initial Dose Rate (at the prostate surface)
30 cGy.h
-1
versus
7 cGy.h
-1
for
125
I and 20 cGy.h
-1
for
103
Pd